What’s the Best Type of Underlayment for Asphalt Shingles?

When installing a new asphalt shingle roof, one of the most critical yet often overlooked components is the underlayment. The underlayment serves as a protective barrier between the shingles and the roof deck, providing an extra layer of defense against moisture, wind, and other environmental elements. But with different types of underlayment available, how do you determine the best option for your home?

In this comprehensive guide, we’ll discuss the different types of roofing underlayment, their benefits, and which one is best for asphalt shingles. We’ll also explain how S&K Construction and Remodeling LLC, an Owens Corning Preferred Contractor, ensures a high-quality roof installation using the best materials available.

What is Roofing Underlayment?

Roofing underlayment is a layer of material installed directly onto the roof deck before the asphalt shingles are applied. Its primary function is to act as a secondary water-resistant barrier, protecting your home from moisture penetration caused by wind-driven rain, snow, and ice dams.

Types of Roofing Underlayment

There are three main types of roofing underlayment used for asphalt shingle roofs:

1. Asphalt-Saturated Felt Underlayment (Traditional Felt Paper)

Also known as “felt paper” or “tar paper,” asphalt-saturated felt is one of the oldest types of roofing underlayment. It is made of a fiberglass or organic mat soaked in asphalt to create a water-resistant barrier.

Pros:

• Cost-effective and widely available
• Provides a decent level of protection against moisture
• Breathable, allowing moisture to escape from the roof deck

Cons:

• Less durable compared to synthetic options
• Absorbs moisture, which can lead to wrinkling and tearing
• Heavier and harder to install than synthetic underlayment

2. Synthetic Roofing Underlayment

Synthetic underlayment is a modern alternative to felt and is made from woven polyethylene or polypropylene, making it lightweight, durable, and highly resistant to water.

Pros:

• Stronger and more durable than felt
• Lightweight and easier to install
• Resistant to tearing and wrinkling
• More water-resistant than felt underlayment
• UV-resistant, allowing it to be exposed longer before shingles are installed

Cons:

• More expensive than traditional felt
• Some lower-quality synthetic products may not be as breathable as felt

3. Rubberized Asphalt Underlayment (Peel and Stick)

This type of underlayment features a self-adhering, rubberized asphalt layer that provides superior waterproofing. It is often used in high-risk areas such as valleys, eaves, and roof penetrations.

Pros:

• Fully waterproof and ideal for ice-prone regions
• Self-adhering for a tight seal
• Flexible and highly resistant to extreme weather conditions

Cons:

• More expensive than other types of underlayment
• Can be difficult to remove and replace

Which Underlayment is Best for Asphalt Shingles?

Choosing the best underlayment depends on several factors, including climate, budget, and roof design. Here’s a breakdown of the best options based on specific conditions:

Best Overall: Synthetic Roofing Underlayment

Synthetic underlayment is the preferred choice for most asphalt shingle roofs due to its durability, lightweight properties, and superior water resistance. It provides excellent protection against moisture while allowing for better installation efficiency.

Best for High-Moisture or Ice-Prone Areas: Rubberized Asphalt Underlayment

For homes located in areas with heavy snowfall, ice dams, or excessive rain, rubberized asphalt underlayment is the best choice. It creates a completely waterproof barrier, reducing the risk of leaks caused by ice damming.

Best Budget Option: Asphalt-Saturated Felt

If cost is a primary concern, traditional asphalt felt is a reliable option. While it lacks the durability and performance of synthetic or rubberized underlayment, it still offers a decent level of protection for asphalt shingle roofs.

Why Underlayment Matters for Your Roof’s Longevity

1. Protection Against Water Damage

Underlayment acts as a backup defense against water intrusion, protecting the roof deck and interior of your home from leaks.

2. Enhanced Wind Resistance

A high-quality underlayment helps prevent wind-driven rain from penetrating under the shingles, reducing the risk of leaks and shingle blow-off.

3. Ice Dam Protection

In cold climates, underlayment is crucial for preventing ice dams from causing leaks along eaves and roof valleys.

4. Improved Roof Performance and Lifespan

Using the right underlayment extends the lifespan of your asphalt shingles by reducing the risk of premature deterioration caused by moisture exposure.

Trust S&K Construction and Remodeling LLC for Expert Roofing Installation

At S&K Construction and Remodeling LLC, we use only the highest-quality roofing materials to ensure your home is protected for years to come. As an Owens Corning Preferred Contractor, we specialize in professional roofing installations that include the best underlayment options available.

Why Choose Us?

✅ Expert Roofing Professionals with Years of Experience
✅ Owens Corning Preferred Contractor
✅ High-Quality Synthetic and Rubberized Underlayment Options
✅ Serving Northeast Ohio, Including Youngstown, Cleveland, Medina, Euclid, Willoughby, and More
✅ Affordable and Transparent Pricing

Contact Us Today!

If you’re planning a new roof installation or need advice on the best underlayment for your home, S&K Construction and Remodeling LLC is here to help. Call us today for a free consultation!

☎️ Phone: [Your Contact Number]
🌐 Website: [Your Website URL]
📍 Service Areas: Youngstown, Cleveland, Beachwood, Chagrin Falls, Chardon, Concord, Gates Mills, Kirtland Hills, Lyndhurst, Mayfield Heights, Pepper Pike, Walton Hills, Wickliffe, Twinsburg, Madison, and surrounding areas.

Final Thoughts

The right roofing underlayment plays a crucial role in protecting your home from moisture, wind, and ice damage. Whether you opt for traditional felt, synthetic underlayment, or a rubberized waterproof barrier, ensuring a high-quality installation is key to maximizing your roof’s lifespan. Trust S&K Construction and Remodeling LLC for expert roofing services and the best materials available!